Robert
There is no purpose, no direction to change. There is no schedule, no timeline. There is no goal, no objective.
Change is random. It can happen, or not happen.
The filter is simply natural selection. Some species survive to reproduce, some don't.
You've been told, numerous times, that coelacanth has changed. The species alive today is not the same critter from 65 million years ago. It, like most everything else except creationists, has evolved.
Again you retreat to it didn't need to change because its envirorment stayed the same.
PROVE IT. Where's the evidence?
The evidence, and it's clear enough for even a rock to understand, is that the sucker is still alive today. We can see the fossils from 65 million years ago and we can see the critters swiming today.
That's evidence.
Aslan is not a Tame Lion